Free Patent Search
A list of online databases for a free patent search covering Canada - United States - Europe - WIPO and the EPO free patent search, Japanese abstracts, and USPTO Depository Library Program.
US Free Patent Search USPTO Depository Library Program
List of locations national. Also patent databases available on cd-rom or electronic databases - search online here. The Full-Text Database now offers all US patents issued since 1790, in the form of searchable numbers and current US classifications hyperlinked to full-page images of each page of each patent.
List of locations national. Also patent databases available on cd-rom or electronic databases - search online here. The Full-Text Database now offers all US patents issued since 1790, in the form of searchable numbers and current US classifications hyperlinked to full-page images of each page of each patent.
Free Patent Search sponsored by Delphion
Get free results according to keywords, other criteria requires a paid subscription.
Get free results according to keywords, other criteria requires a paid subscription.
Agricultural Biotechnology Patents
Maintained by the U.S.D.Ag. Full-text are available for 1994 through 1996.
Maintained by the U.S.D.Ag. Full-text are available for 1994 through 1996.
Canada Patent Search Database
Full text images since 1920 of all patents filed in Canada - free patent search.
Full text images since 1920 of all patents filed in Canada - free patent search.
Europe - European Patent Register
Do a patent search with the EPR.
Do a patent search with the EPR.
British Gateway - Europe's Network of Patent Databases
Free patent search of over 30 million documents from EPO member states,
Free patent search of over 30 million documents from EPO member states,
British Patent Status Enquiry
The British Patent Office's patent register.
The British Patent Office's patent register.
Japan - Industrial Property Digital Library
Search for patents and trademarks - Japanese gazettes and databases with some English translation.
Search for patents and trademarks - Japanese gazettes and databases with some English translation.
Germany - DEPATISnet
Database hosted by German Patent Office.
Database hosted by German Patent Office.
IP Australia
AusPat, the new search system for Australian patents.
AusPat, the new search system for Australian patents.